The Volca Keys Analog Loop Synthesizer from Korg
is a polyphonic lead synthesizer with three self-tuning oscillators
capable of three-note synthesis. It features a built-in 16-step loop
sequencer with the ability to record phrases as you play them. The
Motion Sequencer allows you to record knob edits in real time while the
Active Step and Flux functions can provide dynamic changes to your
programmed sequences. The unit also has built-in delay for time-based
effects.

The unit can be programmed with its 27-key Multi-Touch keypad or
with an external MIDI controller or DAW via its 5-pin DIN MIDI input.
Multiple units from the Volca line can be clock synced with the 1/8"
Sync In and Out connectors. Playback is provided through the 1/8"
headphone output or through the Volca Keys' built-in speaker. It can be
powered by six AA batteries or with the optional KA-350 AC adapter.